In his talk at Y Combinator’s Startup School, Twitter chairman and Square co-founder Jack Dorsey expanded on how he consciously reminds himself to make better choices and, in turn, be a better person. He calls it a “do and don’t” list.

The Next Web went into details of what he includes on the list:

Here’s some of the items from Jack’s “do” list:

Stay present: don’t focus on the past or the future.

Be vulnerable: show people your mistakes and fears so that they can relate

Drink only lemon water and red wine

Six sets of 20 squats and push-ups every day, run for 3 miles, meditate on this list, stand up straight, spend 10 minutes with a heavy bag

Say hello to everyone

Get 7 hours of sleep

Here’s his “don’ts”:

Don’t avoid eye contact

Don’t be late

Don’t set expectations and not meet them

Don’t eat sugar

Dorsey maintains the list on his phone and checks it every day and night. It "has been fundamental in establishing patterns for myself," he said, according to CNET.